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mariarad [96]
3 years ago
5

An energy pyramid shows the amount of available at each feeding level in an ecosystem.​

Biology
1 answer:
timama [110]3 years ago
5 0

Answer:

An energy pyramid is a diagram that compares the energy used by producers, primary consumers, and other trophic levels. In other words, an energy pyramid shows how much energy is available at each trophic level. Energy is lost at each trophic level of a food chain.

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How does the neuroendocrine system maintain homeostasis in the body apex?
erastovalidia [21]

The neuroendocrine system produces and releases hormones which are basically chemicals that travel via the bloodstream to specific organs in the body to control things like heart rate, glucose release rate, etc. This is how homeostasis in maintained.

4 0
3 years ago
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Desde captar el estimulo hasta efectuar una respuesta, la secuencia que sigue en el impulso nervioso es?
Elan Coil [88]

Answer:

creación de un potencial de acción (despolarización), redistribución de iones a través del soma y finalmente repolarización (estado de reposo)

Explanation:

Las neuronas son células nerviosas capaces de transmitir impulsos en forma de corriente eléctrica. Una neurona está compuesta por dendritas, el soma o cuerpo celular y el axón. Durante la transmisión del impulso nervioso, el estímulo es en primer lugar recibido por las dendritas, recorre el soma y termina en el axón. El impulso nervioso se transmite a través de la neurona mediante un proceso de despolarización. Primero, se produce un aumento de la carga eléctrica en el interior de la membrana neuronal debido al aumento de iones de sodio en el interior celular. A continuación, se produce la redistribución de iones dentro del soma, con lo cual la señal se va transmitiendo a lo largo de la neurona. Finalmente, cuando el impulso ha terminado de recorrer el axón, se produce la repolarización o estado de reposo, donde se produce el restablecimiento de las concentraciones iniciales de iones y la neurona vuelve a su estado inicial.

7 0
3 years ago
Where are most of the nutrients from food absorbed? And what happens to the nutrients once they’re absorbed? (Worth 20 points)
Stella [2.4K]

Answer:

Nutrients get absorbed as the food is broken down, with the majority of nutrients being absorbed in the small intestine, where they're then transported into the blood stream

Explanation:

8 0
3 years ago
Why is it not useful to view science as a set of facts
Sergeu [11.5K]
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6 0
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Gram-negative bacteria have a cell wall that is and does not accept the stain, making it appear .
harkovskaia [24]
<span>Gram-negative bacteria have a cell wall that is <u>thin</u> and does not accept the stain, making it appear <u>red or pink</u><u />.
<u>
</u>Gram staining is used for differentiation gram-positive from gram-negative bacteria based on the characteristic of their cell wall. Gram-negative bacteria have a thinner cell wall than gram-positive bacteria. In this staining, bacteria are first stained with crystal violet dye. Only gram-positive bacteria will be violet colored because they can retain the dye thanks to their cell wall. The second staining with fuchsine or safranin will give the red or pink color to the gram-negative bacteria. <u>
</u></span>
3 0
3 years ago
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